Caltech opens a drone lab, with big ideas to improve how robots work with humans

Caltech professor Aaron Ames walks on campus alongside Cassie, a semi-autonomous robot, as doctoral student Jacob Reher, left, controls the direction that Cassie travels. The robot's balance and gait are autonomous. Caltech professor Aaron Ames walks on campus alongside Cassie, a semi-autonomous robot, as doctoral student Jacob Reher, left, controls the direction that Cassie travels. The robot's balance and gait are autonomous. The mechanical "clack, clack, clack" of an orange robot on the march brought Caltech's new indoor drone arena to life.